### CPU ###
-Test("CPU_ARCH", "Checking for CPU architecture", sub {
+Test("ARCH", "Checking for machine architecture", sub {
my $mach = `uname -m`;
chomp $mach;
Fail "Unable to determine machine type" if $? || $mach eq "";
if ($mach =~ /^i[0-9]86$/) {
+ return "i386";
+ } elsif ($mach =~ /^(x86[_-]|amd)64$/) {
+ return "amd64";
+ } else {
+ return "unknown";
+ }
+});
+
+Test("CPU_ARCH", "Checking for CPU architecture", sub {
+ my $mach = Get("ARCH");
+ if ($mach eq "i386") {
Set("CPU_I386");
UnSet("CPU_64BIT_POINTERS");
Set("CPU_LITTLE_ENDIAN");
my $model = $pc{'model'} || 0;
if ($vendor eq "AuthenticAMD") {
if ($family >= 6) {
- if ($model >= 31 && $gccver >= 3003) { $arch = "athlon64"; }
+ if ($model >= 31 && $gccver >= 3004) { $arch = "athlon64"; }
elsif ($model >= 6 && $gccver >= 3003) { $arch = "athlon-xp"; }
else { $arch = "athlon"; }
}
}
}
return $arch ? $arch : "i386";
+ } elsif ($mach eq "amd64") {
+ Set("CPU_AMD64");
+ Set("CPU_64BIT_POINTERS");
+ Set("CPU_LITTLE_ENDIAN");
+ UnSet("CPU_BIG_ENDIAN");
+ Set("CPU_ALLOW_UNALIGNED");
+ Set("CPU_STRUCT_ALIGN" => 8);
+ return "x86-64";
} else {
- return "unknown";
+ return undef;
}
});
-if (Get("CPU_ARCH") eq "unknown") { Warn "CPU type not recognized, using defaults, keep fingers crossed."; }
+
+if (!IsSet("CPU_ARCH")) { Warn "CPU type not recognized, using defaults, keep fingers crossed."; }
### Compiler and its Options ###
Set("CLANG" => "-std=gnu99");
# C optimizations
-Set("COPT" => '-O2 -fstrict-aliasing');
+Set("COPT" => '-O2');
Append("COPT", '-march=$(CPU_ARCH)') if IsSet("CPU_ARCH");
# C optimizations for highly exposed code
# Warnings
Set("CWARNS" => '-Wall -W -Wno-parentheses -Wstrict-prototypes -Wmissing-prototypes -Winline');
+Set("CWARNS_OFF" => '');
# Linker flags
Set("LOPT" => "");
# Extra switches depending on GCC version:
if ($gccver == 3000) {
+ Append("COPT" => "-fstrict-aliasing");
} elsif ($gccver == 3003) {
Append("CWARNS" => "-Wundef -Wredundant-decls");
Append("COPT" => "-finline-limit=20000 --param max-inline-insns-auto=1000");
} elsif ($gccver == 3004) {
Append("CWARNS" => "-Wundef -Wredundant-decls");
+ Append("COPT" => "-finline-limit=2000 --param large-function-insns=5000 --param inline-unit-growth=200 --param large-function-growth=400");
+} elsif ($gccver == 4000 || $gccver == 4001) {
+ Append("CWARNS" => "-Wundef -Wredundant-decls -Wno-pointer-sign -Wdisabled-optimization -Wno-missing-field-initializers");
+ Append("CWARNS_OFF" => "-Wno-pointer-sign");
Append("COPT" => "-finline-limit=5000 --param large-function-insns=5000 --param inline-unit-growth=200 --param large-function-growth=400");
} else {
Warn "Don't know anything about this GCC version, using default switches.\n";
Append("LOPT" => "-s");
}
+# Decide how will lib/partmap.c work
+Set("PARTMAP_IS_MMAP") if IsSet("CPU_64BIT_POINTERS");
+
# If debugging memory allocations:
#LIBS+=-lefence
#CDEBUG+=-DDEBUG_DMALLOC